Results 21 to 30 of about 2,250,576 (244)

Nonlinear Pauli Equation

open access: yesCommunications in Analysis and Mechanics, 2022
In the framework of the self-consistent Maxwell-Pauli theory, the non-linear Pauli equation is obtained. Stationary and nonstationary solutions of the nonlinear Pauli equation for the hydrogen atom are studied. We show that spontaneous emission and the related rearrangement of the internal structure of an atom, which is traditionally called a ...
openaire   +2 more sources

Direct localized boundary-domain integro-differential formulations for physically nonlinear elasticity of inhomogeneous body [PDF]

open access: yes, 2005
A static mixed boundary value problem (BVP) of physically nonlinear elasticity for a continuously inhomogeneous body is considered. Using the two-operator Green-Betti formula and the fundamental solution of an auxiliary linear operator, a non-standard ...
Mikhailov, SE
core   +6 more sources

A nonlinear beam equation

open access: yesApplied Mathematics Letters, 2002
The aim of this paper is to prove the existence and uniqueness of weak solutions to a nonlinear beam equation with linear boundary and initial conditions. The nonlinear term appearing in the beam equation is \([g(w_{xx})]_{xx}\), where \(w=w(x,t)\) is the deflection, \(g\) is a given nonlinear function satisfying a local Lipschitz condition only.
Azmy S. Ackleh   +2 more
openaire   +2 more sources

On Schrödinger Equations with Concentrated Nonlinearities [PDF]

open access: yesAnnals of Physics, 1995
24 pages with figures, compressed and uuencoded ps ...
JONALASINIO G   +2 more
openaire   +3 more sources

Structured Systems of Nonlinear Equations

open access: yesSIAM Journal on Applied Mathematics, 2023
In a "structured system" of equations, each equation depends on a specified subset of the variables. In this article, we explore properties common to "almost every" system with a fixed structure and how the properties can be read from the corresponding connection graph.
Sana Jahedi   +2 more
openaire   +4 more sources

Application of fractional sub-equation method to nonlinear evolution equations [PDF]

open access: yes, 2018
In this paper, we constructed a traveling wave solutions expressed by three types of functions, which are hyperbolic, trigonometric, and rational functions.
Abdelkawy, Mohamed A. A.   +3 more
core   +1 more source

Nonlinear A-Dirac Equations [PDF]

open access: yesAdvances in Applied Clifford Algebras, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Poisson's Equation in Nonlinear Filtering [PDF]

open access: yesSIAM Journal on Control and Optimization, 2014
25 pages; accepted to SIAM Journal on Control and ...
Richard S. Laugesen   +3 more
openaire   +3 more sources

Optical solitons and modulation instability analysis to the quadratic-cubic nonlinear Schrödinger equation [PDF]

open access: yes, 2018
This paper obtains the dark, bright, dark-bright, dark-singular optical and singular soliton solutions to the nonlinear Schrödinger equation with quadratic-cubic nonlinearity (QC-NLSE), which describes the propagation of solitons through optical fibers ...
Yusuf, Abdullahi   +3 more
core   +1 more source

Efficient high-order finite difference methods for nonlinear Klein–Gordon equations. I: Variants of the phi-four model and the form-I of the nonlinear Klein–Gordon equation [PDF]

open access: yes, 2015
In this paper, the problem of solving some nonlinear Klein–Gordon equations (KGEs) is considered. Here, we derive different fourth- and sixth-order explicit and implicit algorithms to solve the phi-four equation and the form-I of the nonlinear Klein ...
Queiruga-Dios, Araceli   +3 more
core   +1 more source

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